Final answer:
The indicated lengths and angle measures are 15, 15 degrees, 42 degrees, and 60 degrees.
Step-by-step explanation:
a) a = 15: The indicated length is 15.
b) m2 = 15: The angle measure is 15 degrees.
c) mZ3 = 42°: The angle measure is 42 degrees.
d) m24 = 60°: The angle measure is 60 degrees.